diff --git a/Src/FluentAssertions/AssertionExtensions.cs b/Src/FluentAssertions/AssertionExtensions.cs
index d2ed6822d9..d4f4274992 100644
--- a/Src/FluentAssertions/AssertionExtensions.cs
+++ b/Src/FluentAssertions/AssertionExtensions.cs
@@ -13,7 +13,6 @@
 using FluentAssertions.Common;
 using FluentAssertions.Numeric;
 using FluentAssertions.Primitives;
-using FluentAssertions.Reflection;
 using FluentAssertions.Specialized;
 using FluentAssertions.Streams;
 using FluentAssertions.Types;
diff --git a/Src/FluentAssertions/FluentAssertions.csproj b/Src/FluentAssertions/FluentAssertions.csproj
index c72f01136a..25c0f8ba2c 100644
--- a/Src/FluentAssertions/FluentAssertions.csproj
+++ b/Src/FluentAssertions/FluentAssertions.csproj
@@ -55,8 +55,6 @@
     <When Condition="'$(TargetFramework)' == 'net6.0'">
       <ItemGroup>
         <Compile Remove="Common/NullConfigurationStore.cs" />
-        <Compile Remove="StringBuilderExtensions.cs" />
-        <Compile Remove="SystemExtensions.cs" />
       </ItemGroup>
       <ItemGroup>
         <PackageReference Include="System.Configuration.ConfigurationManager" Version="4.4.0" />
@@ -66,7 +64,6 @@
       <ItemGroup>
         <Compile Remove="Common/AppSettingsConfigurationStore.cs" />
         <Compile Remove="Common/ConfigurationStoreExceptionInterceptor.cs" />
-        <Compile Remove="SystemExtensions.cs" />
       </ItemGroup>
     </When>
     <When Condition="'$(TargetFramework)' == 'netstandard2.0'">
diff --git a/Src/FluentAssertions/StringBuilderExtensions.cs b/Src/FluentAssertions/Polyfill/StringBuilderExtensions.cs
similarity index 86%
rename from Src/FluentAssertions/StringBuilderExtensions.cs
rename to Src/FluentAssertions/Polyfill/StringBuilderExtensions.cs
index 3c20ee549e..bfe221227c 100644
--- a/Src/FluentAssertions/StringBuilderExtensions.cs
+++ b/Src/FluentAssertions/Polyfill/StringBuilderExtensions.cs
@@ -1,5 +1,8 @@
-using System.Collections.Generic;
+#if NET47 || NETSTANDARD2_0 || NETSTANDARD2_1
 
+using System.Collections.Generic;
+
+// ReSharper disable once CheckNamespace
 namespace System.Text;
 
 /// <summary>
@@ -13,8 +16,8 @@ internal static class StringBuilderExtensions
     public static StringBuilder AppendLine(this StringBuilder stringBuilder, IFormatProvider _, string value) =>
         stringBuilder.AppendLine(value);
 
-#if NET47 || NETSTANDARD2_0
     public static StringBuilder AppendJoin<T>(this StringBuilder stringBuilder, string separator, IEnumerable<T> values) =>
         stringBuilder.Append(string.Join(separator, values));
-#endif
 }
+
+#endif
diff --git a/Src/FluentAssertions/SystemExtensions.cs b/Src/FluentAssertions/Polyfill/SystemExtensions.cs
similarity index 92%
rename from Src/FluentAssertions/SystemExtensions.cs
rename to Src/FluentAssertions/Polyfill/SystemExtensions.cs
index 9594e97654..88a5af634d 100644
--- a/Src/FluentAssertions/SystemExtensions.cs
+++ b/Src/FluentAssertions/Polyfill/SystemExtensions.cs
@@ -1,4 +1,7 @@
-namespace System;
+#if NET47 || NETSTANDARD2_0
+
+// ReSharper disable once CheckNamespace
+namespace System;
 
 internal static class SystemExtensions
 {
@@ -21,3 +24,5 @@ public static bool Contains(this string str, char value, StringComparison compar
     public static bool StartsWith(this string str, char value) =>
         str.Length != 0 && str[0] == value;
 }
+
+#endif
diff --git a/Src/FluentAssertions/Specialized/AssemblyAssertions.cs b/Src/FluentAssertions/Types/AssemblyAssertions.cs
similarity index 99%
rename from Src/FluentAssertions/Specialized/AssemblyAssertions.cs
rename to Src/FluentAssertions/Types/AssemblyAssertions.cs
index 646ce0827b..fbe8a5a23f 100644
--- a/Src/FluentAssertions/Specialized/AssemblyAssertions.cs
+++ b/Src/FluentAssertions/Types/AssemblyAssertions.cs
@@ -6,7 +6,7 @@
 using FluentAssertions.Execution;
 using FluentAssertions.Primitives;
 
-namespace FluentAssertions.Reflection;
+namespace FluentAssertions.Types;
 
 /// <summary>
 /// Contains a number of methods to assert that an <see cref="Assembly"/> is in the expected state.
diff --git a/Src/FluentAssertions/Xml/XmlAssertionExtensions.cs b/Src/FluentAssertions/XmlAssertionExtensions.cs
similarity index 100%
rename from Src/FluentAssertions/Xml/XmlAssertionExtensions.cs
rename to Src/FluentAssertions/XmlAssertionExtensions.cs
diff --git a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net47.verified.txt b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net47.verified.txt
index 71fa616938..2a748c2802 100644
--- a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net47.verified.txt
+++ b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net47.verified.txt
@@ -69,7 +69,7 @@ namespace FluentAssertions
         public static FluentAssertions.Streams.BufferedStreamAssertions Should(this System.IO.BufferedStream actualValue) { }
         public static FluentAssertions.Streams.StreamAssertions Should(this System.IO.Stream actualValue) { }
         public static FluentAssertions.Primitives.HttpResponseMessageAssertions Should(this System.Net.Http.HttpResponseMessage actualValue) { }
-        public static FluentAssertions.Reflection.AssemblyAssertions Should(this System.Reflection.Assembly assembly) { }
+        public static FluentAssertions.Types.AssemblyAssertions Should(this System.Reflection.Assembly assembly) { }
         public static FluentAssertions.Types.ConstructorInfoAssertions Should(this System.Reflection.ConstructorInfo constructorInfo) { }
         public static FluentAssertions.Types.MethodInfoAssertions Should(this System.Reflection.MethodInfo methodInfo) { }
         public static FluentAssertions.Types.PropertyInfoAssertions Should(this System.Reflection.PropertyInfo propertyInfo) { }
@@ -2080,19 +2080,6 @@ namespace FluentAssertions.Primitives
         LessThan = 4,
     }
 }
-namespace FluentAssertions.Reflection
-{
-    public class AssemblyAssertions : FluentAssertions.Primitives.ReferenceTypeAssertions<System.Reflection.Assembly, FluentAssertions.Reflection.AssemblyAssertions>
-    {
-        public AssemblyAssertions(System.Reflection.Assembly assembly) { }
-        protected override string Identifier { get; }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> BeSignedWithPublicKey(string publicKey, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> BeUnsigned(string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndWhichConstraint<FluentAssertions.Reflection.AssemblyAssertions, System.Type> DefineType(string @namespace, string name, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> NotReference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> Reference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
-    }
-}
 namespace FluentAssertions.Specialized
 {
     public class ActionAssertions : FluentAssertions.Specialized.DelegateAssertions<System.Action, FluentAssertions.Specialized.ActionAssertions>
@@ -2267,6 +2254,16 @@ namespace FluentAssertions.Types
     {
         public static FluentAssertions.Types.TypeSelector From(System.Reflection.Assembly assembly) { }
     }
+    public class AssemblyAssertions : FluentAssertions.Primitives.ReferenceTypeAssertions<System.Reflection.Assembly, FluentAssertions.Types.AssemblyAssertions>
+    {
+        public AssemblyAssertions(System.Reflection.Assembly assembly) { }
+        protected override string Identifier { get; }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> BeSignedWithPublicKey(string publicKey, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> BeUnsigned(string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Types.AssemblyAssertions, System.Type> DefineType(string @namespace, string name, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> NotReference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> Reference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
+    }
     public class ConstructorInfoAssertions : FluentAssertions.Types.MethodBaseAssertions<System.Reflection.ConstructorInfo, FluentAssertions.Types.ConstructorInfoAssertions>
     {
         public ConstructorInfoAssertions(System.Reflection.ConstructorInfo constructorInfo) { }
diff --git a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net6.0.verified.txt b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net6.0.verified.txt
index 6d29bd1c3a..b02a826b01 100644
--- a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net6.0.verified.txt
+++ b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/net6.0.verified.txt
@@ -71,7 +71,7 @@ namespace FluentAssertions
         public static FluentAssertions.Streams.BufferedStreamAssertions Should(this System.IO.BufferedStream actualValue) { }
         public static FluentAssertions.Streams.StreamAssertions Should(this System.IO.Stream actualValue) { }
         public static FluentAssertions.Primitives.HttpResponseMessageAssertions Should(this System.Net.Http.HttpResponseMessage actualValue) { }
-        public static FluentAssertions.Reflection.AssemblyAssertions Should(this System.Reflection.Assembly assembly) { }
+        public static FluentAssertions.Types.AssemblyAssertions Should(this System.Reflection.Assembly assembly) { }
         public static FluentAssertions.Types.ConstructorInfoAssertions Should(this System.Reflection.ConstructorInfo constructorInfo) { }
         public static FluentAssertions.Types.MethodInfoAssertions Should(this System.Reflection.MethodInfo methodInfo) { }
         public static FluentAssertions.Types.PropertyInfoAssertions Should(this System.Reflection.PropertyInfo propertyInfo) { }
@@ -2201,19 +2201,6 @@ namespace FluentAssertions.Primitives
         LessThan = 4,
     }
 }
-namespace FluentAssertions.Reflection
-{
-    public class AssemblyAssertions : FluentAssertions.Primitives.ReferenceTypeAssertions<System.Reflection.Assembly, FluentAssertions.Reflection.AssemblyAssertions>
-    {
-        public AssemblyAssertions(System.Reflection.Assembly assembly) { }
-        protected override string Identifier { get; }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> BeSignedWithPublicKey(string publicKey, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> BeUnsigned(string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndWhichConstraint<FluentAssertions.Reflection.AssemblyAssertions, System.Type> DefineType(string @namespace, string name, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> NotReference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> Reference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
-    }
-}
 namespace FluentAssertions.Specialized
 {
     public class ActionAssertions : FluentAssertions.Specialized.DelegateAssertions<System.Action, FluentAssertions.Specialized.ActionAssertions>
@@ -2397,6 +2384,16 @@ namespace FluentAssertions.Types
     {
         public static FluentAssertions.Types.TypeSelector From(System.Reflection.Assembly assembly) { }
     }
+    public class AssemblyAssertions : FluentAssertions.Primitives.ReferenceTypeAssertions<System.Reflection.Assembly, FluentAssertions.Types.AssemblyAssertions>
+    {
+        public AssemblyAssertions(System.Reflection.Assembly assembly) { }
+        protected override string Identifier { get; }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> BeSignedWithPublicKey(string publicKey, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> BeUnsigned(string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Types.AssemblyAssertions, System.Type> DefineType(string @namespace, string name, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> NotReference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> Reference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
+    }
     public class ConstructorInfoAssertions : FluentAssertions.Types.MethodBaseAssertions<System.Reflection.ConstructorInfo, FluentAssertions.Types.ConstructorInfoAssertions>
     {
         public ConstructorInfoAssertions(System.Reflection.ConstructorInfo constructorInfo) { }
diff --git a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.0.verified.txt b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.0.verified.txt
index c39d7e7f89..95f6afb050 100644
--- a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.0.verified.txt
+++ b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.0.verified.txt
@@ -68,7 +68,7 @@ namespace FluentAssertions
         public static FluentAssertions.Streams.BufferedStreamAssertions Should(this System.IO.BufferedStream actualValue) { }
         public static FluentAssertions.Streams.StreamAssertions Should(this System.IO.Stream actualValue) { }
         public static FluentAssertions.Primitives.HttpResponseMessageAssertions Should(this System.Net.Http.HttpResponseMessage actualValue) { }
-        public static FluentAssertions.Reflection.AssemblyAssertions Should(this System.Reflection.Assembly assembly) { }
+        public static FluentAssertions.Types.AssemblyAssertions Should(this System.Reflection.Assembly assembly) { }
         public static FluentAssertions.Types.ConstructorInfoAssertions Should(this System.Reflection.ConstructorInfo constructorInfo) { }
         public static FluentAssertions.Types.MethodInfoAssertions Should(this System.Reflection.MethodInfo methodInfo) { }
         public static FluentAssertions.Types.PropertyInfoAssertions Should(this System.Reflection.PropertyInfo propertyInfo) { }
@@ -2031,19 +2031,6 @@ namespace FluentAssertions.Primitives
         LessThan = 4,
     }
 }
-namespace FluentAssertions.Reflection
-{
-    public class AssemblyAssertions : FluentAssertions.Primitives.ReferenceTypeAssertions<System.Reflection.Assembly, FluentAssertions.Reflection.AssemblyAssertions>
-    {
-        public AssemblyAssertions(System.Reflection.Assembly assembly) { }
-        protected override string Identifier { get; }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> BeSignedWithPublicKey(string publicKey, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> BeUnsigned(string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndWhichConstraint<FluentAssertions.Reflection.AssemblyAssertions, System.Type> DefineType(string @namespace, string name, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> NotReference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> Reference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
-    }
-}
 namespace FluentAssertions.Specialized
 {
     public class ActionAssertions : FluentAssertions.Specialized.DelegateAssertions<System.Action, FluentAssertions.Specialized.ActionAssertions>
@@ -2218,6 +2205,16 @@ namespace FluentAssertions.Types
     {
         public static FluentAssertions.Types.TypeSelector From(System.Reflection.Assembly assembly) { }
     }
+    public class AssemblyAssertions : FluentAssertions.Primitives.ReferenceTypeAssertions<System.Reflection.Assembly, FluentAssertions.Types.AssemblyAssertions>
+    {
+        public AssemblyAssertions(System.Reflection.Assembly assembly) { }
+        protected override string Identifier { get; }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> BeSignedWithPublicKey(string publicKey, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> BeUnsigned(string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Types.AssemblyAssertions, System.Type> DefineType(string @namespace, string name, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> NotReference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> Reference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
+    }
     public class ConstructorInfoAssertions : FluentAssertions.Types.MethodBaseAssertions<System.Reflection.ConstructorInfo, FluentAssertions.Types.ConstructorInfoAssertions>
     {
         public ConstructorInfoAssertions(System.Reflection.ConstructorInfo constructorInfo) { }
diff --git a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.1.verified.txt b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.1.verified.txt
index 34e0f4b77d..9df7cf4d85 100644
--- a/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.1.verified.txt
+++ b/Tests/Approval.Tests/ApprovedApi/FluentAssertions/netstandard2.1.verified.txt
@@ -69,7 +69,7 @@ namespace FluentAssertions
         public static FluentAssertions.Streams.BufferedStreamAssertions Should(this System.IO.BufferedStream actualValue) { }
         public static FluentAssertions.Streams.StreamAssertions Should(this System.IO.Stream actualValue) { }
         public static FluentAssertions.Primitives.HttpResponseMessageAssertions Should(this System.Net.Http.HttpResponseMessage actualValue) { }
-        public static FluentAssertions.Reflection.AssemblyAssertions Should(this System.Reflection.Assembly assembly) { }
+        public static FluentAssertions.Types.AssemblyAssertions Should(this System.Reflection.Assembly assembly) { }
         public static FluentAssertions.Types.ConstructorInfoAssertions Should(this System.Reflection.ConstructorInfo constructorInfo) { }
         public static FluentAssertions.Types.MethodInfoAssertions Should(this System.Reflection.MethodInfo methodInfo) { }
         public static FluentAssertions.Types.PropertyInfoAssertions Should(this System.Reflection.PropertyInfo propertyInfo) { }
@@ -2080,19 +2080,6 @@ namespace FluentAssertions.Primitives
         LessThan = 4,
     }
 }
-namespace FluentAssertions.Reflection
-{
-    public class AssemblyAssertions : FluentAssertions.Primitives.ReferenceTypeAssertions<System.Reflection.Assembly, FluentAssertions.Reflection.AssemblyAssertions>
-    {
-        public AssemblyAssertions(System.Reflection.Assembly assembly) { }
-        protected override string Identifier { get; }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> BeSignedWithPublicKey(string publicKey, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> BeUnsigned(string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndWhichConstraint<FluentAssertions.Reflection.AssemblyAssertions, System.Type> DefineType(string @namespace, string name, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> NotReference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
-        public FluentAssertions.AndConstraint<FluentAssertions.Reflection.AssemblyAssertions> Reference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
-    }
-}
 namespace FluentAssertions.Specialized
 {
     public class ActionAssertions : FluentAssertions.Specialized.DelegateAssertions<System.Action, FluentAssertions.Specialized.ActionAssertions>
@@ -2269,6 +2256,16 @@ namespace FluentAssertions.Types
     {
         public static FluentAssertions.Types.TypeSelector From(System.Reflection.Assembly assembly) { }
     }
+    public class AssemblyAssertions : FluentAssertions.Primitives.ReferenceTypeAssertions<System.Reflection.Assembly, FluentAssertions.Types.AssemblyAssertions>
+    {
+        public AssemblyAssertions(System.Reflection.Assembly assembly) { }
+        protected override string Identifier { get; }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> BeSignedWithPublicKey(string publicKey, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> BeUnsigned(string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndWhichConstraint<FluentAssertions.Types.AssemblyAssertions, System.Type> DefineType(string @namespace, string name, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> NotReference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
+        public FluentAssertions.AndConstraint<FluentAssertions.Types.AssemblyAssertions> Reference(System.Reflection.Assembly assembly, string because = "", params object[] becauseArgs) { }
+    }
     public class ConstructorInfoAssertions : FluentAssertions.Types.MethodBaseAssertions<System.Reflection.ConstructorInfo, FluentAssertions.Types.ConstructorInfoAssertions>
     {
         public ConstructorInfoAssertions(System.Reflection.ConstructorInfo constructorInfo) { }
diff --git a/qodana.yaml b/qodana.yaml
index caf1cfb08b..540010267c 100644
--- a/qodana.yaml
+++ b/qodana.yaml
@@ -26,3 +26,6 @@ exclude:
   - name: ConvertToLambdaExpression
   - name: SwitchExpressionHandlesSomeKnownEnumValuesWithExceptionInDefault
   - name: UnusedMemberInSuper.Global
+  - name: CheckNamespace
+    paths:
+      - Src\FluentAssertions\Polyfill